Question

我正在搜索数组['results']，其中只有该数组的某些成员具有键'taxonomicStatus'

阵列中有15个成员：

http://api.gbif.org/v1/species?name=Micromussa%20amakusensis

当我搜索数组时，它返回一个列表，其中包含键'taxonomicStatus'

的列表

$taxonomicStatus_search = array_column($taxon['results'], 'taxonomicStatus'); 

Array
(
[0] => HOMOTYPIC_SYNONYM
[1] => ACCEPTED
[2] => SYNONYM
[3] => ACCEPTED
[4] => ACCEPTED
[5] => ACCEPTED
)

预期输出：

Array
(
[0] => HOMOTYPIC_SYNONYM
[1] =>
[2] =>
[3] =>
[4] =>
[5] =>
[6] =>
[7] =>
[8] =>
[9] => ACCEPTED
[10] => SYNONYM
[11] => ACCEPTED
[12] => ACCEPTED
[13] => 
[14] => ACCEPTED
)

我正在设置返回第一个键=＆gt;在这种情况下接受9

Answer 1

在这里，您应该使用foreach循环而不是array_column。

PHP code demo

<?php
ini_set('display_errors', 1);
$json='{"offset":0,"limit":20,"endOfRecords":true,"results":[{"key":4880483,"nubKey":4880483,"nameKey":7024762,"taxonID":"gbif:4880483","sourceTaxonKey":106044866,"kingdom":"Animalia","phylum":"Cnidaria","order":"Scleractinia","family":"Mussidae","genus":"Acanthastrea","species":"Acanthastrea amakusensis","kingdomKey":1,"phylumKey":43,"classKey":206,"orderKey":714,"familyKey":7002,"genusKey":2260342,"speciesKey":2260347,"datasetKey":"d7dddbf4-2cf0-4f39-9b2a-bb099caae36c","constituentKey":"2d59e5db-57ad-41ff-97d6-11f5fb264527","parentKey":2260342,"parent":"Acanthastrea","acceptedKey":2260347,"accepted":"Acanthastrea amakusensis Veron, 1990","basionymKey":2260347,"basionym":"Acanthastrea amakusensis Veron, 1990","scientificName":"Micromussa amakusensis (Veron, 1990)","canonicalName":"Micromussa amakusensis","authorship":" (Veron, 1990)","nameType":"SCIENTIFIC","rank":"SPECIES","origin":"SOURCE","taxonomicStatus":"HOMOTYPIC_SYNONYM","nomenclaturalStatus":[],"remarks":"Originally found in sources as accepted taxon within Micromussa Veron, 2000","publishedIn":"Veron, J. (1990). New Scleractinia from Japan and other Indo-West Pacific Countries. <em>Galaxea.</em> 9: 95-173.","numDescendants":0,"lastCrawled":"2017-02-14T13:42:21.926+0000","lastInterpreted":"2017-02-14T13:00:20.059+0000","issues":["ORIGINAL_NAME_DERIVED","CONFLICTING_BASIONYM_COMBINATION"],"synonym":true,"class":"Anthozoa"},{"key":100173150,"nubKey":4880483,"nameKey":7024754,"taxonID":"9ab7c4e2-4e69-40ed-a128-e684ae550128","datasetKey":"cd174407-5632-4090-ba61-9ff3fe41bc03","scientificName":"Micromussa amakusensis","canonicalName":"Micromussa amakusensis","authorship":"","nameType":"SCIENTIFIC","origin":"SOURCE","nomenclaturalStatus":[],"numDescendants":0,"lastCrawled":"2016-03-18T03:32:43.271+0000","lastInterpreted":"2016-03-18T03:33:11.104+0000","issues":[],"synonym":false},{"key":100173154,"nubKey":4880483,"nameKey":7024754,"taxonID":"12559e75-a90a-4c25-aea3-ccdb4fdb83bf","datasetKey":"cd174407-5632-4090-ba61-9ff3fe41bc03","scientificName":"Micromussa amakusensis","canonicalName":"Micromussa amakusensis","authorship":"","nameType":"SCIENTIFIC","origin":"SOURCE","nomenclaturalStatus":[],"numDescendants":0,"lastCrawled":"2016-03-18T03:32:43.271+0000","lastInterpreted":"2016-03-18T03:33:11.121+0000","issues":[],"synonym":false},{"key":100173158,"nubKey":4880483,"nameKey":7024754,"taxonID":"92ea7343-22df-4873-b4e9-40409f74b4af","datasetKey":"cd174407-5632-4090-ba61-9ff3fe41bc03","scientificName":"Micromussa amakusensis","canonicalName":"Micromussa amakusensis","authorship":"","nameType":"SCIENTIFIC","origin":"SOURCE","nomenclaturalStatus":[],"numDescendants":0,"lastCrawled":"2016-03-18T03:32:43.271+0000","lastInterpreted":"2016-03-18T03:33:11.124+0000","issues":[],"synonym":false},{"key":100173162,"nubKey":4880483,"nameKey":7024754,"taxonID":"12ee3ff9-af4c-4e8f-8081-e7d4f6e5299b","datasetKey":"cd174407-5632-4090-ba61-9ff3fe41bc03","scientificName":"Micromussa amakusensis","canonicalName":"Micromussa amakusensis","authorship":"","nameType":"SCIENTIFIC","origin":"SOURCE","nomenclaturalStatus":[],"numDescendants":0,"lastCrawled":"2016-03-18T03:32:43.271+0000","lastInterpreted":"2016-03-18T03:33:11.127+0000","issues":[],"synonym":false},{"key":100173164,"nubKey":4880483,"nameKey":7024754,"taxonID":"84c84f33-746b-44b5-8b4d-4bbda7d2c4df","datasetKey":"cd174407-5632-4090-ba61-9ff3fe41bc03","scientificName":"Micromussa amakusensis","canonicalName":"Micromussa amakusensis","authorship":"","nameType":"SCIENTIFIC","origin":"SOURCE","nomenclaturalStatus":[],"numDescendants":0,"lastCrawled":"2016-03-18T03:32:43.271+0000","lastInterpreted":"2016-03-18T03:33:11.130+0000","issues":[],"synonym":false},{"key":100173168,"nubKey":4880483,"nameKey":7024754,"taxonID":"c4d607ef-2411-42d1-a467-69c1c9f26659","datasetKey":"cd174407-5632-4090-ba61-9ff3fe41bc03","scientificName":"Micromussa amakusensis","canonicalName":"Micromussa amakusensis","authorship":"","nameType":"SCIENTIFIC","origin":"SOURCE","nomenclaturalStatus":[],"numDescendants":0,"lastCrawled":"2016-03-18T03:32:43.271+0000","lastInterpreted":"2016-03-18T03:33:11.132+0000","issues":[],"synonym":false},{"key":100173171,"nubKey":4880483,"nameKey":7024754,"taxonID":"7924f639-de7e-43e4-9432-b0d5e6dca968","datasetKey":"cd174407-5632-4090-ba61-9ff3fe41bc03","scientificName":"Micromussa amakusensis","canonicalName":"Micromussa amakusensis","authorship":"","nameType":"SCIENTIFIC","origin":"SOURCE","nomenclaturalStatus":[],"numDescendants":0,"lastCrawled":"2016-03-18T03:32:43.271+0000","lastInterpreted":"2016-03-18T03:33:11.135+0000","issues":[],"synonym":false},{"key":100173175,"nubKey":4880483,"nameKey":7024754,"taxonID":"32d56d2e-f30c-48f6-a026-872cbe079b09","datasetKey":"cd174407-5632-4090-ba61-9ff3fe41bc03","scientificName":"Micromussa amakusensis","canonicalName":"Micromussa amakusensis","authorship":"","nameType":"SCIENTIFIC","origin":"SOURCE","nomenclaturalStatus":[],"numDescendants":0,"lastCrawled":"2016-03-18T03:32:43.271+0000","lastInterpreted":"2016-03-18T03:33:11.138+0000","issues":[],"synonym":false},{"key":103844245,"nubKey":4880483,"nameKey":7024754,"taxonID":"541204","kingdom":"Metazoa","phylum":"Cnidaria","order":"Scleractinia","family":"Lobophylliidae","genus":"Micromussa","species":"Micromussa amakusensis","kingdomKey":103832354,"phylumKey":103840581,"classKey":103840587,"orderKey":103842303,"familyKey":103844141,"genusKey":103844241,"speciesKey":103844245,"datasetKey":"fab88965-e69d-4491-a04d-e3198b626e52","parentKey":103844241,"parent":"Micromussa","scientificName":"Micromussa amakusensis","canonicalName":"Micromussa amakusensis","authorship":"","nameType":"SCIENTIFIC","rank":"SPECIES","origin":"SOURCE","taxonomicStatus":"ACCEPTED","nomenclaturalStatus":[],"numDescendants":0,"lastCrawled":"2017-04-05T12:35:20.730+0000","lastInterpreted":"2017-04-05T16:19:21.040+0000","issues":[],"synonym":false,"class":"Anthozoa"},{"key":104437493,"nubKey":4880483,"nameKey":7024762,"taxonID":"e275620","kingdom":"Metazoa","phylum":"Cnidaria","order":"Scleractinia","family":"Lobophylliidae","genus":"Micromussa","species":"Micromussa amakusensis","kingdomKey":103832354,"phylumKey":103840581,"classKey":103840587,"orderKey":103842303,"familyKey":103844141,"genusKey":103844241,"speciesKey":103844245,"datasetKey":"fab88965-e69d-4491-a04d-e3198b626e52","parentKey":103844241,"parent":"Micromussa","acceptedKey":103844245,"accepted":"Micromussa amakusensis","scientificName":"Micromussa amakusensis (Veron, 1990)","canonicalName":"Micromussa amakusensis","authorship":" (Veron, 1990)","nameType":"SCIENTIFIC","origin":"SOURCE","taxonomicStatus":"SYNONYM","nomenclaturalStatus":[],"numDescendants":0,"lastCrawled":"2017-04-05T12:35:20.730+0000","lastInterpreted":"2017-04-05T16:19:21.076+0000","issues":[],"synonym":true,"class":"Anthozoa"},{"key":106044866,"nubKey":4880483,"nameKey":7024762,"taxonID":"578144","kingdom":"Animalia","phylum":"Cnidaria","order":"Scleractinia","family":"Lobophylliidae","genus":"Micromussa","species":"Micromussa amakusensis","kingdomKey":105759303,"phylumKey":106038449,"classKey":106038458,"orderKey":106041523,"familyKey":106044737,"genusKey":106044865,"speciesKey":106044866,"datasetKey":"2d59e5db-57ad-41ff-97d6-11f5fb264527","parentKey":106044865,"parent":"Micromussa","scientificName":"Micromussa amakusensis (Veron, 1990)","canonicalName":"Micromussa amakusensis","authorship":" (Veron, 1990)","nameType":"SCIENTIFIC","rank":"SPECIES","origin":"SOURCE","taxonomicStatus":"ACCEPTED","nomenclaturalStatus":[],"publishedIn":"Veron, J. (1990). New Scleractinia from Japan and other Indo-West Pacific Countries. <em>Galaxea.</em> 9: 95-173.","numDescendants":0,"references":"http://www.marinespecies.org/aphia.php?p=taxdetails&id=578144","lastCrawled":"2017-04-05T12:35:47.557+0000","lastInterpreted":"2017-04-05T23:33:39.530+0000","issues":["SCIENTIFIC_NAME_ASSEMBLED","CLASSIFICATION_NOT_APPLIED"],"synonym":false,"class":"Anthozoa"},{"key":107964469,"nubKey":4880483,"nameKey":7024762,"taxonID":"11137807","kingdom":"Animalia","phylum":"Cnidaria","order":"Scleractinia","family":"Mussidae","genus":"Micromussa","species":"Micromussa amakusensis","kingdomKey":106350111,"phylumKey":107950494,"classKey":107950495,"orderKey":107961048,"familyKey":107964371,"genusKey":107964468,"speciesKey":107964469,"datasetKey":"0938172b-2086-439c-a1dd-c21cb0109ed5","parentKey":107964468,"parent":"Micromussa","scientificName":"Micromussa amakusensis (Veron, 1990)","canonicalName":"Micromussa amakusensis","authorship":" (Veron, 1990)","nameType":"SCIENTIFIC","rank":"SPECIES","origin":"SOURCE","taxonomicStatus":"ACCEPTED","nomenclaturalStatus":[],"accordingTo":"CAAB (Jul 2007)","numDescendants":0,"lastCrawled":"2016-07-28T00:58:37.055+0000","lastInterpreted":"2016-05-02T18:57:57.778+0000","issues":[],"synonym":false,"class":"Anthozoa"},{"key":114325584,"nubKey":4880483,"nameKey":7024762,"taxonID":"cbce9f16-454e-4bd3-9b67-be3c724d3a31","phylum":"Cnidaria","order":"Scleractinia","family":"Lobophylliidae","genus":"Micromussa","species":"Micromussa amakusensis","phylumKey":114319504,"classKey":114319514,"orderKey":114322547,"familyKey":114325449,"genusKey":114325583,"speciesKey":114325584,"datasetKey":"a5358a8d-9b1a-43a3-b769-50d3e6ef8bd9","parentKey":114325583,"parent":"Micromussa","scientificName":"Micromussa amakusensis (Veron, 1990)","canonicalName":"Micromussa amakusensis","authorship":" (Veron, 1990)","nameType":"SCIENTIFIC","rank":"SPECIES","origin":"SOURCE","nomenclaturalStatus":[],"numDescendants":0,"lastCrawled":"2017-02-15T20:02:28.156+0000","lastInterpreted":"2016-01-18T23:13:36.578+0000","issues":["SCIENTIFIC_NAME_ASSEMBLED"],"synonym":false,"class":"Anthozoa"},{"key":121496079,"nubKey":4880483,"nameKey":7024760,"taxonID":"160121","kingdom":"Animalia","order":"Scleractinia","family":"Mussidae","genus":"Micromussa","species":"Micromussa amakusensis","kingdomKey":121280070,"classKey":121477750,"orderKey":121483436,"familyKey":121495529,"genusKey":121496073,"speciesKey":121496079,"datasetKey":"c33ce2f2-c3cc-43a5-a380-fe4526d63650","parentKey":121496073,"parent":"Micromussa","scientificName":"Micromussa amakusensis (Veron 1990)","canonicalName":"Micromussa amakusensis","authorship":" (Veron, 1990)","nameType":"SCIENTIFIC","rank":"SPECIES","origin":"SOURCE","taxonomicStatus":"ACCEPTED","nomenclaturalStatus":[],"accordingTo":"J.E.N. Veron. 2000. Corals of the World","numDescendants":0,"lastCrawled":"2016-11-23T11:10:22.160+0000","lastInterpreted":"2016-11-23T11:25:41.551+0000","issues":["SCIENTIFIC_NAME_ASSEMBLED"],"synonym":false,"class":"Anthozoa"}]}';
$array=  json_decode($json,true);

foreach($array["results"] as $result)
{
    $data[]=isset($result["taxonomicStatus"]) ? $result["taxonomicStatus"] : false;
}
print_r($data);

解决方案2：

array_map(function($result) use (&$data){
    $data[]=isset($result["taxonomicStatus"]) ? $result["taxonomicStatus"] : false;
}, $array["results"]);
print_r($data);

<强>输出：

Array
(
    [0] => HOMOTYPIC_SYNONYM
    [1] => 
    [2] => 
    [3] => 
    [4] => 
    [5] => 
    [6] => 
    [7] => 
    [8] => 
    [9] => ACCEPTED
    [10] => SYNONYM
    [11] => ACCEPTED
    [12] => ACCEPTED
    [13] => 
    [14] => ACCEPTED
)

Answer 2

我会使用数组映射来解决这个特殊问题。

有两种方法可以做到这一点。明确定义函数或匿名函数。我会做两件事，用你觉得容易的事。

function taxonomicStatusMap ($item) {
    return empty($item['taxonomicStatus']) ? null : $item['taxonomicStatus'];
}
$statusArray = array_map("taxonomicStatusMap", $taxon['results']);

DEMO 1

或第二个选项，

$statusArray = array_map(function ($item) {
    return empty($item['taxonomicStatus']) ? null : $item['taxonomicStatus'];
}, $taxon['results']);

DEMO 2

在这两种情况下，$statusArray将完全返回您所需的内容。

我个人喜欢使用第二个，如果它将在我的代码中的多个位置使用它只执行一次然后我使用第一种方法。

希望这有帮助。

php，当一些数组成员缺少键时获取所有数组键

2 个答案: